<script src="js/jquery-3.5.1.min.js"></script>
<script id="vertexShader" type="x-shader/x-vertex">
    attribute vec4 vPosition;
    attribute vec4 vColor;
    varying vec4 fColor;

    void main() {
        gl_Position = vPosition;
        fColor = vColor;
    }
</script>
<script id="fragmentShader" type="x-shader/x-fragment">
    precision mediump float;
    varying vec4 fColor;

    void main() {
        gl_FragColor = fColor;
    }
</script>
<script type="text/javascript" src="js/Common/webgl-utils.js"></script>
<script type="text/javascript" src="js/Common/initShaders.js"></script>
<script type="text/javascript" src="js/Common/MV.js"></script>
<script type="text/javascript" src="test/test.js"></script>
<canvas id="glcanvas" width="600" height="520">
    你的浏览器似乎不支持或者禁用了HTML5 <code>&lt;canvas&gt;</code> 元素.
</canvas>